this game uses box files which seem to be rare
Just wondering, have you seen other games that use box files?
I have not. (Before posting that^ I looked ".box" up on a file extension info site and didn't find much of insight.
However just now I looked it up again on a different sight and found something which may be very interesting.
What I did find was a mention of our game and link
http://www.elberethzone.net/en/dup-supportedgames.html. Which is some person's site who makes a program that supposedly lets you open and hack game files. I'm probably leaping to conclusions but this may just allow you to modify the game, even make an editor! (I would myself but my knowledge of programming is extremely limited) Anyway I'm going to test this program out later.
and to get back on topic more glitches;
-you kinda of touched on this when u explained blockers I just I thought I's give a little more detail.
as to freeing a blocker: if you dig 3 digs down (4 digs is the best way btw) and bash across the blocker will stop the basher. But you can still bash your way through by "forcing the lemming" (it takes a few bashers) you'll get through but the basher will leave a tiny space of terrain where the blocker stands (thus not freeing the blocker.
-the "disappearing steps" thing I posted about;
this only happens when you attempt to build in an area where terrain once was (
in which a basher is still currently bashing through). So it could be handy for having one lemming build and be alone (the others will fall through the steps that "vanish". I don't think this happens at all with miners or diggers